Question

Frequency range of bode magnitude and phases are decided by :

(a) The lowest and higher important frequencies of dominant factors of the OLTF

(b) The lowest and highest important frequencies of all the factors of the open loop transfer function

(c) Resonant frequencies of the second factors

(d) None of the above

This question was addressed to me in unit test.

I want to ask this question from Bode Plots topic in division Frequency Response Analysis of Control Systems

Answer 1

Correct choice is (d) None of the above

The best I can explain: T. F. = Kp (1+Tds)

There is only one zero which will give slope of +20dB/decade.